KBR says Adgas hopes to cut flaring to zero at its existing facility.
It currently flares an estimated 10-15 million cubic feet a day (cf/d) of sweet and sour gas.
The plant, which has a total liquid natural gas (LNG) capacity of 6 million tonnes a year (t/y) through three gas trains, also produces about 1.7 million t/y of liquefied petroleum gas (LPG), 535,000 t/y of pentane and 338,000 t/y of sulphur.
The bulk of the LNG is sold on long-term contracts to Tokyo Electric Power Company (Tepco).
Work on the project is expected to start immediately.